SHEARING INTERFEROMETER USING FOUR GRATINGS
K. Iwata, H. Kikuta, T. Kondo, A. Mizutani
Abstract:
This paper describes a shearing interferometer with four diffraction gratings for dividing light waves. It allows us to use an extended white light source. This feature of the interferometer is discussed and demonstrated by experiments. By constructing the interferometer for testing transparent object, phase distribution of the light wave passing through an optical lens is measured with a halogen lamp source. By modifying it for the reflecting object, profile of a curved mirror is measured.
Keywords:
shearing interferometer, grating, phase measurement
Download:
IMEKO-WC-2000-TC2-P040.pdf
DOI:
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Event details
Event name:
XVI IMEKO World Congress
Title:

Measurement - Supports Science - Improves Technology - Protects Environment ... and Provides Employment - Now and in the Future

Place:
Vienna, AUSTRIA
Time:
25 September 2000 - 28 September 2000
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